Grandmas may not know much about Kylie Jenner's latest lip kits or the hottest K-beauty products on the market, but having that many decades behind you comes with a bit of wisdom about what beauty routines work.

For a new video, Allure spoke to three women over the age of 100 to learn their beauty secrets, from face washing rituals to hair-styling tricks.

Interestingly, all of the ladies seemed to have one thing in common: They don't leave the house without lipstick.

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Never leave the house without it! Betty Terpan, 101, said she doesn't feel fully dressed without lipstick on

A century of wisdom: She and 104-year-old Helen Jabornik star in a new video on Allure.com

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Sharing her tricks: 101-year-old Clementine Bonafidi appears in the video as well

'Don't try to make your face tan, because it's the only face you have, honey!' she says.

The stars of the video, who also include 101-year-old Clementine Bonafidi, also stress the importance of washing one's face.

Helen says she does it first thing in the morning, while Betty does it three to four times a day with sudsy water before applying baby oil.

Helen said in her 20s she started wearing wigs so she didn't have to bother doing her hair

Soft: Betty shared that she washes her face up to four times a day and applies baby oil to it

As for hair, the women are surprisingly non-fussy.

'I was in maybe my late 20s when I decided to get a wig because it saved me time in the morning,' says Helen, who adds that she had a bunch of different wigs for going dancing, school, and just walking.

'Sometimes I can look in the mirror at myself and in five minutes have it done. Another time, I just sort of let it go its own way,' explains Betty.

'Fortunately ... my hair — I do nothing to it. I wash my hair, dry it, and put it up,' she said.